In froth floatation process sulphide ore is shaken with pine oil and water, the ore particles are adsorbed on froth that floats and the gangue particles settle down in tank. Thus, role of adsorption in froth floatation process can be understood as following processes. (i) Adsorption of pine oil on sulphide ore particles. (ii) Formation of emulsion takes place. (iv) Froth is formed along with ore particles. (v) Mechanism of the functioning of shape selective catalysis. As sulphide are extracted using froth floatation method therefore, only sulphide ore particles will show these type of adsorbing tendency.